Thionine

(R = H)

Wildes, P.D.; Lichtin, N.N.
J. Phys. Chem. 82(9): 981-4 (1978)

E = 192-200(mV), pH = ~1.7

Kinetics + E(Q/QH2); not E0; E(QH/QH2) = 566-575 mV at pH ~1.7.


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